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[Launchpad Bug Tracker <1298693@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package ubuntu-drivers-common - 1:0.4.10

---------------
ubuntu-drivers-common (1:0.4.10) wily; urgency=medium

  * debian/tests/system: Drop the nvidia package tests; they are now tested
    through autodep8 on every kernel and dkms change, so we don't have to rely
    on this hard to maintain autopkgtest any more. Also drop most other driver
    package tests for the same reason; just keep the "fglrx" test to get a
    full end-to-end test with "ubuntu-drivers".

 -- Martin Pitt <martin.pitt@xxxxxxxxxx>  Thu, 03 Sep 2015 11:27:33
+0200

** Changed in: ubuntu-drivers-common (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1298693

Title:
  gpu-manager crashed with SIGSEGV in _IO_vfprintf_internal()

Status in ubuntu-drivers-common package in Ubuntu:
  Fix Released
Status in ubuntu-drivers-common source package in Trusty:
  Triaged

Bug description:
  after installed nvidia-331,
   I'm try to use nvidia-switch in terminal, got a segment fault

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-drivers-common 1:0.2.91.1
  ProcVersionSignature: Ubuntu 3.13.0-19.40-generic 3.13.6
  Uname: Linux 3.13.0-19-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Mar 27 23:49:44 2014
  ExecutablePath: /usr/bin/gpu-manager
  InstallationDate: Installed on 2014-03-18 (9 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140318)
  ProcCmdline: /usr/bin/gpu-manager --log /var/log/gpu-manager.log
  SegvAnalysis:
   Segfault happened at: 0x7fef36a38fcd <_IO_vfprintf_internal+45>:	mov    0xc0(%rdi),%eax
   PC (0x7fef36a38fcd) ok
   source "0xc0(%rdi)" (0x000000c0) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: ubuntu-drivers-common
  StacktraceTop:
   _IO_vfprintf_internal (s=0x0, format=0x4099b3 "log_file: %s\n", ap=ap@entry=0x7fff6fb6e928) at vfprintf.c:1295
   __fprintf (stream=<optimized out>, format=<optimized out>) at fprintf.c:32
   ?? ()
   __libc_start_main (main=0x40627e, argc=3, argv=0x7fff6fb6ec38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6fb6ec28) at libc-start.c:287
   ?? ()
  Title: gpu-manager crashed with SIGSEGV in _IO_vfprintf_internal()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo

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